如何解析數組到MYSQL IN（）？

Question

我想查詢數據庫時遇到問題，在這種情況下，我想使用IN（）mysql函數通過數組中的值字段搜索數據。

比如我從PHP

$data = array(1,2,3,4); 

陣列，這是我的查詢代碼來選擇數據的Employee表

$query = 'SELECT * FROM employee_tbl 
    -> WHERE daily_typing_pages IN ' .$data.; 

當我執行的代碼我有這樣

錯誤

Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Array 
SELECT * FROM employee_tbl 
     -> WHERE daily_typing_pages IN Array; 

我認爲，錯誤是因爲數組讀取爲字符串，並不解析爲這種格式(1,2,3,4)

我該如何轉換爲該格式？ 有什麼建議嗎？

Answer 1

使用implode()以字符串的形式創建實際的以逗號分隔的項目列表。

$query = 'SELECT * FROM employee_tbl 
    -> WHERE daily_typing_pages IN (' . implode(",", $data) . ")"; 

Answer 2

試試這個代碼，使用implode()數組轉換成字符串

$query = "SELECT * FROM employee_tbl 
     -> WHERE daily_typing_pages IN (".implode(',',$data).") "; 

Answer 3

使用implode()

$x = array(1,2,3,4); 
$y = implode(',',$x); 

Answer 4

嘗試，

$data = array(1,2,3,4); 
$ids = join(',',$data); 
$sql = "SELECT * FROM employee_tbl WHERE daily_typing_pages IN ($ids)";